{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["used for", "evaluate for", "conjunction", "feature of"], "input": "In contrast , we detect and describe 2D features in a nonlinear scale space by means of nonlinear diffusion filtering ."}
{"used for": [{"subject": "nonlinear diffusion filtering", "object": "2D features"}], "evaluate for": [], "conjunction": [], "feature of": [{"subject": "nonlinear scale space", "object": "2D features"}]}